totta crolla wrote:Whilst l appreciate your post is about changing the cams it maybe possible to get
closer to your requirements withcareful tuning of camshafts and ecu.
Having less overlap at TDC will help idle, retard inlet and advance exhaust cams to get less overlap.
Cold and hot starts are all about ecu calibration, hot start needing more crank fuel.
Cold start using just enough extra fuel to keep it running after the initial fire.
Increase ignition timing to help with running after the start.
This ^^^^^ . You have installed "race" cams with a fair bit of duration. And if the
engine is tuned for maximum power high in the rev range (lots of overlap) it will
need a high idle and have a decent lope
BUT if you are using an aftermarket ECU and have vernier cam pulleys, you can
explain to your tuner that you want the car to run more like a car with a stock
engine, and he can "de-tune" the engine. Reducing the valve overlap, closing the
inlet valves later, less ignition advance etc, will take the sting out of the tune.
Then you can have a lower idle, easier starting, less fuss and so on without
replacing the cams. That's all in the tune !!!
And should you ever decide that you would like a bit more power, it is just a
question of adjusting the engine tune... no need to change anything else
Cheers... jondee86